#66CCF8#66CCF8

#66CCF8 is a light, moderate cyan. Relative luminance 0.528; OKLCH L 80.1% C 0.113 H 228.8°. Best body text is #000000 at 11.56:1 contrast (WCAG AA passes).

Color values

HEX	#66CCF8
RGB	rgb(102, 204, 248)
HSL	hsl(198, 91%, 69%)
HSV	hsv(198, 59%, 97%)
CMYK	cmyk(58.9%, 17.7%, 0%, 2.7%)
CIE-LAB	lab(77.75, -17.27, -30.58)
CIE-LCH	lch(77.75, 35.12, 240.55°)
OKLab	oklab(80.1% -0.0747 -0.0853)
OKLCH	oklch(80.1% 0.113 228.8)
XYZ	xyz(44.0091, 52.7836, 96.6577)
Luminance	0.5279 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CCF8 #F89266

analogous

#66F8DB #66CCF8 #6683F8

triadic

#66CCF8 #F866CC #CCF866

tetradic

#66CCF8 #DB66F8 #F89266 #83F866

square

#66CCF8 #DB66F8 #F89266 #83F866

split-complementary

#66CCF8 #F86683 #F8DB66

monochromatic

#0A9BDA #2BB8F5 #66CCF8 #A1E0FB #DBF3FD

Accessibility & contrast

On white

1.82

#66CCF8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.56

#66CCF8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CCF8

11.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CCF8	#FFFFFF	#000000	##000000
##66CCF8	1.00	1.82	11.56	11.56
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.56	21.00	1.00	1.00
##000000	11.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5C9FA

Deuteranopia (green-blind)

#A1B9F7

Tritanopia (blue-blind)

#00D8DA

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #66ccf8;
/* rgb */ color: rgb(102, 204, 248);
/* oklch */ color: oklch(80.1% 0.113 228.8);

Tailwind

colors: {
  custom: {
    50: '#9ddbfa',
    500: '#66ccf8',
    950: '#000000',
  },
}

SCSS

$custom: #66ccf8;
$custom-light: #9ddbfa;
$custom-dark: #000000;

JSON

{
  "hex": "#66ccf8",
  "rgb": {
    "r": 102,
    "g": 204,
    "b": 248
  },
  "hsl": {
    "h": 198.082,
    "s": 91.25,
    "l": 68.627
  },
  "oklch": {
    "l": 0.80099,
    "c": 0.11339,
    "h": 228.8
  },
  "luminance": 0.52788
}

Semantic roles & 50–950 ramp

primary

#66CCF8

secondary

#D26131

accent

#4500E6

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #66CCF8

Body copy rendered with the generated semantic roles for this colour.

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